Improvement in centrifugal machines



I 2 Sheets-Sheet 1. W. T: BELL 8L J. GOLDSAG'K, J1. Centrifugal Machine.

No. 210,657. I Patented Dec. 10, 1878.,

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O Y c a j I W v V 7a Witnesses: 11w mu ic/u:

NYPEIERS, PHOTO LITNOGRAPNEH WASH NGTO u c 2S'neets--Sheet.2 W. T BfiLL8L J. GOLDSAGK, Jr.--

Centrifugal Maphine. No. 210,657. 10,1878.

Patented Dec U x uf. up M H. PETERS. PHOTO-LITSQGRIQPHER. WASHENGTON, D.C.

v To all whom it may concern:

UNITED STATE s 'Pn'rnnr Denier WILLIAM r. BELL, on NEW YORK, n; Y., ANDJOSEPH GOLDSAGK, an, or

Jnnsnr CITY, n. J.; SAID GOLDSAOK nssronon r0 SAID BELL.

IMPROVEMENT IN CEN TRIFUGAL MACHlNES.

' Specification fbrniing part of Letters Patent No. 210,657, datedDecember 10, 1878; application filed March 4, 1878.

Be it known that we, XVILLIAM T. BELL, of the city, county, and State ofNew York, and

'Josnrn GOLDSACK, Jr., of Jersey City, Hudson county, in the State ofNew Jersey, are

the inventors, jointly, of an Improved (Jentrit'u gal Sugar-Drainin gMachine, of which the following 1s afull, clear, and exact descrip-,tion, reference being bad to the accompanying drawings, forming tion,in which Figure 1 is aside elevation of a machine embodying ourinvention, a portion of the wall of the chamber inclosing the basketbepart of this specificaing cut away to disclose the basket. Fig. 2is'ertures in its sides open 5 and Fig. 4 is a plan,

partly in section, on the lineac a", Fig. 3, of the basket, the gatewhich we preferably employ to open and close the dischargeapertures ofthe basket being removed.

Our invention relates to centrifugal Inachines for draining sugar; andit consists, first, in a basket for such machines having the aperturesfor the discharge of the sugar therefrom in the side or circumferentialwall thereof second, in the peculiar gate and its operating mechanismwhich we employ to open and close the dischargeapertures of the basket,all as hereinafter particularly set forth, and more at length recited inthe claims.

A is the basket of our improved machine, and is constructed with theclosed or solid bottom a, and has its circumferential wall perforatedand lined with netting or gauze, as is usual in machines of this class.The basket is mounted upon a vertical drivingshaft, B, which has ahearing at its lower end in a step, I), on the platform or base M, andat its upper parta bearing in the frame N at I), as shown. The basket isinclosed by the customary chamber 0, to receive and carry off by agutter, c, the molasses drained from the basket, said chamber beingarranged as shown, supported by columns 0, fixed in themachine-platfbrm. The shaft B is rotated by ,means of thefriction-wheels Z) and b and balance or guide friction-wheel I), asshown, the shafts of the wheels I) and b having bcarin gs in frame N,and one or both being driven by a pulley, as at If. The frameN and thefrictiongearing are preferably arranged below the basket, as shown.

In the circumferential wall of the basket, and preferably in the lowerportion thereof,'we make one or more of the wide apertures D, and wefind it preferable to have that portion of the said wall in which theseapertures are made continuous, as seen at (0 and without theperforations or netting lining which vat a It is desirable that a numberof these apertures D should be ranged around the wall of the basket, asshown in the drawin Oommunicatin g with these apertures are arranged thespouts or chutes D, one upon each side of the basket, and mounted on theframe of the machine. Only one of these chutes is shown int-he drawings.

We find that the device shown in the-draw in gs is to be preferred foropening and closing the apertures D.- This consists of a gate or valve,E, preferably conical in shape, as shown, arranged to fit horizontallyin the basket and to have a vertical movement within the basket. Anannular projection, a is formed upon the interior of the wall of thebasket, above the line of the apertures D, and against this the rim ofthe gate or valve E abuts and rests when the disk is raised in theposition shown in Fig. 2. When thus raised the apertures D .are closedto the upper part of the basket, and the contents of the basket cannotescape through said apertures. When it is desired to open said aperturesD, the gate or valve E is lowered until its rim is below the line of thesaid apertures, when it is evident that the con tents of the basket maybe readily discharged through the apertures D.

It will be perceived that this arrangement of parts is admirably adaptedfor a sugar raising the gate or valve E, as stated, the wet sugar isintroduced into the basket. \Vhen the draining is completed and therotation of the basket has ceased, the apertures D are extend over theother portion of said wall, as

drainer. The apertures D being closed by opened by lowering the disk,and the sugar which has collected upon the wall of the basket isdetached therefrom, and may be readily discharged from the basketthrough the apertures D into the chutes D, the conical shape of the diskaiding the ready discharge, and cars being conveniently placed at thelower ends of the chutes the sugar is received by them and may beconveyed away.

Various devices may be employed to raise and lower the gate or valve Ebut we prefer the following, as shown in Figs. 3 and 4.

Upon the bottom of the basket, under the disk, is fixed a block orstandard, 6, and upon the sides of this block are pivoted the levers 0,each of which is provided with a pin, 6 engaging a slot, 6 in the platea". This plate is on the end of a .hollow shaft, 6 on the ex terior ofwhich, by means of a central opening in the disk, the disk slidesvertically. Through this hollow shaft e rises vertically from the block6 the post 0, which has a screw-thread, as shown.

To the upper end of the shaft 6 is fixed a nut, 6 which works on thepost a, and above this is a jam-nut, e, on theend of the post.

To raise the gate or valve E, the slotted plate 6 is, by means of theshaft 0 and its nut 6 turned upon the post c in one direction, so thatthe pins 6 in the levers 0 will swing the long arms of the leversupward, and said arms,

bearing against the under face of the disk, will raise the disk to thedesired height and support it, when the, parts may be secured inposition by the jam-nut e.

To lower the disk the jam-nutis loosened and the plate a turned in thereverse direction, when the levers willfall and the disk descend.

At F is seen the brake which we employ to check the rotation of thebasket. It consists of a band or strap, as shown, which encircles a ringor hub, f, projecting downward from the base of the basket, the brake Ibeing secured at one end to a pin set in the machineframe, and closed,down upon the hub f by means of a bell-crank lever, f to which itsopposite end is hinged, said lever being pivoted on the machine-frame,and operated by a lever, f through a connecting-rod, f said leverf beingon the end of a shaft, f arranged in bearings at the side of theapparatus, so

.as to be convenient to the operator,

To prevent the shaft B from swaying in its upper bearing, b, we providethe spring-bolts b arranged radially about the said shaft, and seated attheir outer ends in studs or an annulus, as shown in Fig. 2. Thus, whenthe shaft tends to sway from a vertical position during the rotation ofthe heavy basket, the spring-bolts, impinging upon it from all sides,will operate to force and hold it in proper po sition in the bearing b.

Upon the shafts of the friction driving-wheels b and b are arranged thecoil-sprin gs d, which bear at one end against the perimeter of thewheel, and at the other in suitable recesses it against the frame ofthe-machine, in which the shafts havebearings. These springs operate topress the wheels I) and 12 against the wheel I) on the shaft B, and.thus insure the constant and continuous friction between the wheelsrequisite to secure the proper rotation of the shaft B and its imposedweight. a

What we claim as our invention, and desire to secure by Letters Patent,is-

1. In a centrifugal sugar-draining machine, the circumferential sidewall of the basket, provided with one or more openings, D, whereby thedrained sugar may be discharged from the basket through said wall, asdescribed.

2. In a centrifugal sugar-draining machine, the basket A, having one ormore apertures, D, in its circumferential side wall for the discharge ofthe sugar from the basket, together with the gate E, whereby saidapertures may be opened and closed, as described.

3. In a centrifugal sugar-draining machine, the combination, with thebasket A, having the discharge-apertures D in its circumferential sidewall, and the interior annular projec tion c of the conical gate orvalve E, with the levers 0 provided with pins 0 engaging slotted plate6, adapted to be revolved on its axis and held in a desired positionthereon, as described, and for the purpose set forth.

WILLIAM TURNBULL BELL. JOSEPH GOLDSAOK, JR.

Witnesses:

B. S. CLARK, THEODORE G. Hosrnn.

